Q. Determine the contrapositive of each of the following statements :
(i) If Mohan is a poet, then he is poor.
(ii) Only if max studies will he pass the test.
(iii) If she works, she will earn money.
(iv) If it snows, then they do not drive the car.
(v) It never rains when it is cold.
(vi) If Ravish skis, then it snowed.
(vii) If x is less than zero, then x is not positive.
(viii) If he has courage he will win.
(ix) It is necessary to be strong in order to be a sailor.
(x) Only if he does not tire will ne win.
(xi) If x is an integer and x2 is odd, then x is odd.